Hello, I've noticed that one of Czech sensors had measured constant rise of radiation, about 0,9uSv/h, the sensor is marked as "red". It's about 30 km from Temelin-2 reactor. Another sensors measures only "normal" background between 0,15 and 0,20 uSv/h (in Czech Republic is higher than in Poland). I thought that the owner of a sensor just experimented with some sources and forgot to turn the counter in "test" mode - but for a weeks? Any suggestions?

Screens are on my blog here:
http://promieniowanie.blogspot.com/2013/12/radioactivehome-skok-ta-w-czechach.html

I noticed it too. Sensor was turned off in 27 dec 2013. This situation is strange. Now is 0.99 uSv/h and still rising but with small rate. Maybe owner of this sensor have better information about it.

Now ( UTC+1 05 - 01 - 2014 ' 21:14 ) is on 1.26 uSv/h. I wrote to richi (Czech National Team) about it but he didn't answered yet. Perhaps any part of the sensor is broken.

Any update from this user yet on what may be causing it?